1 files changed, 19 insertions, 0 deletions
diff --git a/src/basic/util.c b/src/basic/util.c
index 460e74061a..3e90456dd3 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -6829,3 +6829,22 @@ bool fdname_is_valid(const char *s) {
 bool oom_score_adjust_is_valid(int oa) {
         return oa >= OOM_SCORE_ADJ_MIN && oa <= OOM_SCORE_ADJ_MAX;
 }
+
+void string_erase(char *x) {
+
+        if (!x)
+                return;
+
+        /* A delicious drop of snake-oil! To be called on memory where
+         * we stored passphrases or so, after we used them. */
+
+        memory_erase(x, strlen(x));
+}
+
+char *string_free_erase(char *s) {
+        if (!s)
+                return NULL;
+
+        string_erase(s);
+        return mfree(s);
+}